# museRoll vs KG

The clearest difference is update cadence: museRoll at every 3 days against KG's every 3 weeks. museRoll also leads on iOS requirement (15.1 vs 26.5). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

museRoll ships an update every 3 days, KG every 3 weeks. The most recent releases landed on October 10, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | museRoll | KG |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Size | 27 MB | 36 MB |
| Requires iOS | **15.1** | 26.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ryosuke koike](https://appshunter.io/developer/1602094056) | [Kouki Yoshimoto](https://appshunter.io/developer/1884780659) |

## What reviewers say

### museRoll

[App page](https://appshunter.io/ios/app/museroll/id6763229015)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### KG

[App page](https://appshunter.io/ios/app/kg-square-virtual-analog-synth/id6776108274)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is museRoll free?

museRoll is free to download, with no in-app purchases.

### Is KG free?

KG is free to download, with no in-app purchases.

### Do museRoll or KG have ads?

Neither museRoll nor KG shows ads.

### Which is updated more often, museRoll or KG?

museRoll ships an update every 3 days, and KG every 3 weeks. Most recently, museRoll was updated on October 10, 2026 and KG on October 14, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*